Add hidden push notification setting for future builds.
Update for [REDACTED].
Remove deprecated methods.

Most of these methods are related to rotation, which we don't
support yet anyway.
Convert to modern Objective-C syntax.
Convert a few straggling `retain`s over to `strong`.
Update BlockAlerts and MBProgressHUD.
Explicitly retain `self`.
Change from `__weak` to `__block`.
Cast types to avoid warnings about multiple methods of the same name.